iodine value
61Chemical element — The periodic table of the chemical elements A chemical element is a pure chemical substance consisting of one type of atom distinguished by its atomic number, which is the number of protons in its nucleus.[1] Familiar examples of …
62Free radical halogenation — In organic chemistry, free radical halogenation is a type of halogenation. This chemical reaction is typical of alkanes and alkyl substituted aromatics under application of heat or UV light. The reaction is used for the industrial synthesis of… …
63halogen element — ▪ chemical element group Introduction any of the five nonmetallic elements that constitute Group 17 (Group VIIa) of the periodic (periodic law) table. The halogen elements are fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine… …
64Salt — This article is about common table salt. For other uses, see Salt (disambiguation). Table salt (NaCl) crystal …
65Hydroxide — Lewis structure of the hydroxide ion showing three lone pairs on the oxygen atom …
66Computed tomography — tomos (slice) and graphein (to write).Computed tomography was originally known as the EMI scan as it was developed at a research branch of EMI, a company best known today for its music and recording business. It was later known as computed axial… …
67Thyroid hormone — The thyroid hormones, thyroxine (T4) and triiodothyronine (T3), are tyrosine based hormones produced by the thyroid gland. An important component in the synthesis is iodine. The major form of thyroid hormone in the blood is thyroxine (T4). The… …
68carbohydrate — /kahr boh huy drayt, beuh /, n. any of a class of organic compounds that are polyhydroxy aldehydes or polyhydroxy ketones, or change to such substances on simple chemical transformations, as hydrolysis, oxidation, or reduction, and that form the… …
69acid–base reaction — ▪ chemistry Introduction a type of chemical process typified by the exchange of one or more hydrogen ions, H+, between species that may be neutral (molecules, such as water, H2O; or acetic acid, CH3CO2H) or electrically charged (ions, such… …
70Graves' disease — Classification and external resources Photo showing the classic finding of proptosis and lid retraction in Graves disease ICD 10 …
